High-resolution (1 km) Koppen-Geiger maps for 1901-2099 based on constrained CMIP6 projections.
We introduce Version 2 of our widely used 1-km Koppen-Geiger climate classification maps for historical and future climate conditions. The historical maps (encompassing 1901-1930, 1931-1960, 1961-1990, and 1991-2020) are based on high-resolution, observation-based climatologies, while the future map...
Published in: | Scientific Data |
---|---|
Main Authors: | , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2023
|
Subjects: | |
Online Access: | https://biblio.ugent.be/publication/01HF6K5DA9Z9PPBZQDCHJCRZYH http://hdl.handle.net/1854/LU-01HF6K5DA9Z9PPBZQDCHJCRZYH https://doi.org/10.1038/s41597-023-02549-6 https://biblio.ugent.be/publication/01HF6K5DA9Z9PPBZQDCHJCRZYH/file/01HF6K5WX600FT7DGGPCTTGC3D |
Summary: | We introduce Version 2 of our widely used 1-km Koppen-Geiger climate classification maps for historical and future climate conditions. The historical maps (encompassing 1901-1930, 1931-1960, 1961-1990, and 1991-2020) are based on high-resolution, observation-based climatologies, while the future maps (encompassing 2041-2070 and 2071-2099) are based on downscaled and bias-corrected climate projections for seven shared socio-economic pathways (SSPs). We evaluated 67 climate models from the Coupled Model Intercomparison Project phase 6 (CMIP6) and kept a subset of 42 with the most plausible CO2-induced warming rates. We estimate that from 1901-1930 to 1991-2020, approximately 5% of the global land surface (excluding Antarctica) transitioned to a different major Koppen-Geiger class. Furthermore, we project that from 1991-2020 to 2071-2099, 5% of the land surface will transition to a different major class under the low-emissions SSP1-2.6 scenario, 8% under the middle-of-the-road SSP2-4.5 scenario, and 13% under the high-emissions SSP5-8.5 scenario. The Koppen-Geiger maps, along with associated confidence estimates, underlying monthly air temperature and precipitation data, and sensitivity metrics for the CMIP6 models, can be accessed at www.gloh2o.org/koppen. |
---|